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Finding the Fourth Proportional to 540,189.06, 745,496.04 and 298,471.68

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Solution

The fourth proportional to 540,189.06, 745,496.04 and 298,471.68 is: 411,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,189.06 : 745,496.04 = 298,471.68 : x
  2. Step 2: Convert to fraction form
    540,189.06/745,496.04 = 298,471.68/x
  3. Step 3: Cross multiply
    540,189.06x = 745,496.04 × 298,471.68
  4. Step 4: Simplify right side
    540,189.06x = 222,509,455,492.15
  5. Step 5: Solve for x
    x = 222,509,455,492.15/540,189.06
  6. Step 6: Final answer
    x = 411,910.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.